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Question

Give an example of a combination reaction between an element and a compound.


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Solution

Combination reaction: A synthesis reaction or combination reaction is a type of chemical reaction in which 2 or more reactants combine to form a single product.

Example: Formation of Sulphur trioxide (SO3)

2SO2(g)(Sulphurdioxide)+O2(g)(Oxygen)2SO3(g)(Sulphurtrioxide)

In this example, Sulphur dioxide is a compound and Oxygen is an element.

Element: A pure chemical substance composed of the same type of atoms. Example: Oxygen molecule (O2) contains 2 atoms of the same element called Oxygen (O).

Compound: A chemical substance in which two or more elements are present in a fixed proportion. Example: In Sulphur trioxide,


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